Lamb wave excitation and propagation in elastic plates with surface obstacles: proper choice of central frequencies
Lamb wave excitation and propagation in elastic plates with surface obstacles: proper choice of central frequencies
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DOI：
10.1088/0964-1726/20/1/015020
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发表时间：
2011-01-01
影响因子：
4.1
通讯作者：
Neumann, Mirko N.
中科院分区：
文献类型：
--
作者：
Glushkov, Evgeny;Glushkova, Natalia;Neumann, Mirko N.
实验和理论研究的Lamb波激励和传感使用压电贴片传感器和激光测振仪技术已经进行，旨在开发足够的数学和计算机模型的传感数据的解释和结构健康监测的最佳参数的选择。实验结果验证了所提出的模型的有效性。此外，提出了一种方法，它允许确定的中心频率，在该中心频率处的结构响应谱的最大值可以预期的情况下，波传播监测与激光测振。
Experimental and theoretical investigations of Lamb wave excitation and sensing using piezo patch transducers and the laser vibrometer technique have been performed, aiming at the development of adequate mathematical and computer models for the interpretation of sensing data and for the choice of optimal parameters for structural health monitoring. The proposed models are validated by experimental results. Furthermore, a methodology is presented which allows for the determination of central frequencies at which maximal values of the structural response spectrum can be expected in the case of wave propagation monitoring with laser vibrometry.